He ___________ unwisely, but he was at least trying to do something helpful.
A．may have acted B．must have acted
C．should have acted D．would act
Having checked the doors were closed and ______ all the lights were off, the boy opened the door to his bedroom.
A．why B．that C．when D．where
______ is often the case is that Tom doesn’t study hard and fails in passing an exam.
A．That B．What C．It D．As
Great changes __________ in this city over the past five years.
A．took place B．have been taken place
C．were taken place D．have taken place
Last Sunday a few of us arranged to meet in town, but Jenny didn’t _______.
A．give up B．make up C．turn up D．take up
The student _____ from the training so much that he was _____ the first prize in the event.
A．benefited; awarded B．awarded; benefited
C．gained; earned D．earned; gained
